Do You Have a Book About a Shrunken Head?

Before there were ways to track calls so easily, I admit I did my share of (hopefully) harmless prank calling.  Not too many and just people I knew and most of the time I would reveal myself before hanging up, or at least the next day.  One time my brother and I pranked the local library- where I worked.  For some reason my brother did the talked and sing-songily asked, "Do you have a book (two beats) about a shrunken head?"  I wonder if he remembers that.  I wonder why I do!
In any case, when I saw that The Shrunken Head was a book by Lauren Oliver, whose books I have enjoyed a great deal, was available for a listen, I borrowed it!  Visiting her website just now, I see I am quite behind with her new offerings!  That is the price I pay for usually only listening now.  This is the first in a series called The Curiosity House,  I had creepy feelings about reading it.  The whole exploitation of "freaks" idea was nagging at me throughout most of it.  And I read this, regarding AHS: Freak Show, which I very much enjoyed.  Which led me to this.   Which led me to this.
So this was a tricky book.  However, there was nothing offensive in that the characters all were described in respectful ways.   It just didn't quite grab me.